Means for connecting spools or bobbins to spindles.



No. 729,095- PATENTED MAY 26, 1903..

LIE. J. RABBET MEANS FOR CONNECTING SPOOLS O BBINS T0 SPINDLES.

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Patented May 26, 1903.

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FRANCIS J. RABBETH, OF REDLANDS, CALIFORNIA.

SPECIFICATION forming part of Letters Patent No. 729,095, dated May 26, 1903.:

Application filed March a, 1902.

To all whom it may concern: 7

Be it known that I, FRANCIS J. RABBETH, a citizen of the United States, residing at Redlands, in the county of San Bernardino and State of California, have invented an Improvement in Means for Connecting Spools or Bobbins to Spindles, of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings representing like parts.

Spools and bobbins have been provided at their head with a groove in which has been placed and held frictionally open rings of round wire, the ring having an inturned end to be engaged bya pin projecting from a collar or plate forming part of a spindle, said pin engaging said end and causing the spool or bobbin to be rotated with the spindle. I have found in practice that it is difficult to maintain in the groove in the end of the spool or bobbin a ring of round wire of the proper diameter to be successfully used and also that the inturned end of the piece of round wire sometimes fails to effect a proper engagement with the pin on the collar or plate carried by the spindle when the spindle is being run at a high speed, for sometimes the quick blow of the pin on the inturned end of the round wire acts tolift the spool or bobbin upward on the spindle, this trouble arising whenever the upper end of the pin strikes the wire below its longitudinal center, the

pin striking a circular surface of the wire.

In my studies to provide improved connecting meansbetween a spool or bobbin and the usual pin carried by the spindle I have devised a spring-ring presenting at its lower edge a surface that may be engaged firmly by the pin Whenever the pin in the rotation of the collar or plate meets the inturned end of the ring. The ring as herein shown is coinparatively thin when measured diametrically of the ring and comparatively wide when measured from one to its other edge, and the inner side of the body of the spring-ring is preferably substantially parallel with the longitudinal axis of the spool or bobbin and the spindle carrying the same, and the inturned end of the ring therefore presents a substantially vertical surface that may be engaged by the usual driving-pin projecting upwardly Serial No. 96,423. (No model.)

from the collar or plate of the spindle. The ring is shaped externally to engage the undercut outer wall of the groove formed at the lower end of the spool or bobbin, the shape of the groove in cross-section and the shape of the outer edge of the ring being such as to prevent the withdrawal of the ring laterally from the groove in the lower end of the spool or bobbin.

Figure 1 shows a sufficient portion of a spindle with a spool thereon containing means embodying my invention for connecting the spool with the spindle, and Fig. 2 is an under side view of Fig. 1.

I have herein chosen to illustrate my invention in connection with a spool A; butit will be understood that my invention is equally applicable to any form of bobbin or yarn-holder having a head or base.

The spool A herein shown is provided at its lower end with an annular groove a the outer wall of which is undercut partially at a. The spindle 5 provided with a collar or plate I), has a pin 1). The means employed for rotating the spool by or through the pin 19 consists, as herein shown, of a ring 0, having a substantially vertical inner wall 0, and the outer wall of said ring is thickened between its outer and inner edge, as at 0 said thickened portion, of whatever shape, entering the undercut part of the outer wall of the groove 0., said thickened portion or projection when the ring expands in the said groove preventing the withdrawal of the ring sidewise from the groove in the lower end of the spool. The inner side of the ring (shown in Fig. 1) is substantially vertical or parallel with the longitudinal axis of the spool and of the spindle, and one end 0 of this ringis inturned, as represented in Fig. 2, and the inturned end of the ring presents a substantially vertical face that may be engaged by the pin 19 when the bobbin fitted over the upper end of the rotating spindle is pushed down, so that the pin 19 may enter the groove (1-. If desired, the inturned end of the ring may be slightly inclined with relation to the vertical to thereby place that edge of the inturned end of the ring which is nearest the lower-end of the spool in such position that it may be engaged first by the pin; but in practice I find that simply inturning the end a and leaving its face substantially vertical operates well, yet my invention would not be departed from by slightly inclining the inturned end 0 from the vertical. A ring having the cross-section shown as compared with a ring composed of round Wire presents greater elasticity and may also be made much lighter in Weight, and when thousands of spools or bobbins are used. in a factory a small difference in weight is of importance.

By the employmentof the ring herein shown there is no tendency Whatever for the pin when striking the ring to lift the spool on the spindle. The inclination of the inturned end of the ring is downwardly and backwardly with relation to the direction of rotation of the spool by the usual driving-pin 1) common to spinning-machines.

Having described my invention, what I claim, and desire to secure by Letters Patent,

1. A spool or bobbin having an annular groove at one end, the outer wall of said groove being undercut, and a ring shaped to engage the undercut groove andbe retained therein, said ring having one end inturned and shaped to be engaged at its lower edge by the usual driving-pin.

2. A spool or bobbin having an annulargroove, the outer wall of which is deepened at its inner end, a spring-ring inserted in said groove and having a projection to engage the enlarged part of said groove and prevent withdrawal of the ring from the groove in the spool, said ring having one end inturned and shaped to be engaged by the usual driving-pin.

3. A spool or bobbin having an annular groove,and a spring-ring inserted therein having its inner face substantially parallel with the longitudinal axis of the spool or bobbin, said ring having its end inturned to be engaged by the usual driving-pin.

4. A spool or bobbin having an annular groove, a spring-ring inserted therein, said spring-ring having its endinturned, the inner face of said ring and the inturned end being substantially parallel to the longitudinal axis of the spool or bobbin that the usual drivingpin'may engage said inturned end substan tially at the lower end of the spool.

5. A spool or bobbin having a groove at one end, a spring-ring inserted in said groove, the

inner side of said ring being in a straight line from one to its other edge, the exterior of said ring being thickened toward the inner edge thereof, said ring having an inturned end adapted to be engaged by the usual pin to effect the rotation of the spool or bobbin.

6. A spindle carrying a vertical pin, a spool or bobbin having a groove at one end, a ring having its inner side substantially parallel with the longitudinal center of the spindle, the outer side of said ring being shaped to prevent the escape of the ring from the groove in the spool or bobbin, one end of said ring being inturned and left in the condition to be engaged at its lower edge by the pin, said pin rotating the spool or bobbin with the spindle.

7. A spool or bobbin provided at one end With an open spring-ring having one end inturned and shaped to be engaged substantially at its lower'edge by the usual drivingpin.

8. A spool or bobbin provided at one end with an open spring-ring the inner side of which for the width of the ring is substantially parallel to the longitudinal center of the spool or bobbin, one end of said ring being inturned and positioned that it may be engaged substantially at the lower edge of said inturned end by the usual driving-pin.

9. A bobbin and spindle connector, comprising a spring-ring adapted to be inserted in the groove of a bobbin, said ring having an inturned end and a projection extending circumferentially from the outer or exterior wall of said ring.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

FRANCIS J. RABBETH.

Witnesses:

GEO. W. GREGORY, ELIZABETH R. MORRISON. 

